The long, chequered history of the Speedster has a clear physical core: its engine deep in the rear. In the new 911 Speedster, this is a high-performance 4.0-litre naturally aspirated, horizontally opposed engine. For a high-revving concept that reaches 9,000rpm. Maximum torque is 470Nm. And output a whopping 375kW (510PS).
The acceleration and speed values are also extraordinary. Because the new 911 Speedster sprints from 0 to 100km/h in just 4,0 secs, thanks to its 6-speed GT sports manual transmission. Before reaching a top speed of over 300km/h. Who does it take after? The 911 GT3 – and its even more powerful brother, the 911 GT3 RS.
Extremely robust and high-performing, the RS engine was originally based on that of the 911 GT3 Cup. The oil supply principle also originates from motorsport and uses a dry sump and separate engine oil tank, fully variable oil pressure pump and highly efficient supply of the bearings via the crankshaft.
The four-valve technology with cam followers and rigid valve control has also been fully tested on the race track. The engine block and cylinder heads are made of aluminium, and the titanium piston rods are forged. Thanks to VarioCam, the camshaft adjustment is finely tuned according to engine speed and load. Six individual throttle valves ensure optimum air supply to every cylinder.
A stereo lambda control circuit regulates the exhaust gas composition and monitors pollutant conversion in the catalytic converters. To reduce particulate emissions, the 911 Speedster is fitted with a particulate filter. The necessary regeneration process of the particulate filter runs independently and unnoticed. The extra weight of the sports exhaust system due to the additional particulate filter is more than offset by a newly developed lightweight construction concept.
The result of all these measures: direct responsiveness and motorsport-typical vehicle performance. With the unparalleled soundtrack of a thoroughbred naturally aspirated engine. Absolutely beautiful. And amazingly fast.